Plug valve



July 21, 1936. J, PURLEE Y2,048,564

PLUGY VALVE Filed Dec. Al0, 1955 GGO gmc/Wto@ Patented July 2l, 1936 l UNITED STATES- PATE- NT orner.`

PLUG vALvE Iemuel J. Purlee, East st. Louis, v111.

Application December 10, 1935, Serial No. 53,803 l4 claims. (ci. 251-41) lThis invention relates to liquid controlling vdevices in the nature of valves and particularly to aA structure designed to take the pla-ce of ordinary valves for controlling 4discharge from on overhead pipe into a tank, though the invention is not necessarily restricted to this use.

The general object of the invention is to provide a very simple and cheaply constructed means whereby a plug valve may be held to a seat within a discharge tting or shifted away from saidvseat.

Another object is to provide a device of this character in which the plug valve seats within a downwardly opening discharge fitting, the plug valve having a yoke embracing the fitting and extending upward, and a lever swingingly connesting the yoke whereby the plug may be moved downward or drawn upward, means being provided for holding the lever in an adjusted position and, if necessary, locked in place.

Other objects will appear in the course of the following description.

My invention is illustrated in the accompanying drawing wherein:-

Figure 1 is a side elevation showing one application of my improved plug valve and operating means;

Figure 2 is a section on the line 2-2 of Figure 1;

Figure 3 is a section on the line 3-3 of Figure 1.

Referring to this drawing, Ill designates a pipe line having in its length a fitting II in the form of a T, the fitting discharging downwardly by means of the branch I2 and the lower end of the branch I2 being formed with a seat I3.

Shown as mounted upon the pipe I0, though I do not wish to be limited to this, is a clamp I4 of the type illustrated in Figure 3, the clamp being split and extending upward at I5, the split clamp being held upon the pipe by means of a bolt I 6. Disposed between the upper ends of the legs of the clamp is one end of a lever I1, which is pivoted to the clamp by any suitable means as, for instance, by a bolt or rivet I8. 'I'his lever at its opposite end, as shown in Figure 3, is disposed between the legs I9 of a split clamp 20. This clamp is held in place upon the pipe I0 by means of the bolt 2|, the legs of the clamp being held spaced apart by means of the spacers 22. The legs of the clamp are perforated at 23 for the passage of a locking pin 24. 'I'he lever is provided with the shackle 25 and swingingly connected to this shackle is a yoke 26, which extends downward and embraces the tting I I and at its lower end the legs of. this yoke are connected by means of a lcross bar 2l, the extremities of the yokepassing through the cross bar and being engaged with the cross bar by the nuts 28. .Mountedvupon thev upper face of this cross bar 211s the plug 29- which maybe made Aof rubber or any other suit-Y able material and is tapered upwardly `so as' to fit the seat I3. 'I'he plug is shown as being connested to the cross bar by means ofthe bolt 30,

Normally the lever I1 will be held raised by the pin 24 and the plug valve thus held firmly to its seat. When it is desired to permit the discharge of liquid from the pipe I0, the pin 24 is removed and the lever lowered to the desired amount. If the lever is fully lowered, the plug valve will be entirely removed from its seat and in this case, l5

the yoke may be swung laterally to carry the plug valve entirely away from the lower end of the fitting II and then the lever may be raised. On the other hand, by adjusting the lever I'I with the plug still partly within the seat I3, a partial discharge may be secured.

While I have illustrated the clamps I9 and I5 as being mounted upon a pipe, I do not Wish to be limited to this as these members I5 and I9 might depend from an overhead beam and provide a fulcrum for the lever I'I and a means for latching the lever in any desired position. It is obvious that in place of the pin 24, the hasp of a padlock might be used to lock the lever in place so that the lever could not be shifted downward without authority.

This device is particularly designed to be used where liquid of any kind is discharged into atank and particularly where the liquid is of a character such as is liable to corrode steel or other metals. Under these circumstances, the yoke 26 and the strap or cross bar 2'I may be covered with lead and the rubber plug will be held in place by lead nuts on the bolt 30 or the plug otherwise attached to the cross bar 2'I. This particular form of valve is leak-proof and can be used in places where ordinary valves do not prove satisfactory. The device is simple and easy to make and has been found particularly effective in practice. The up-keep for such a plug valve as I have shown is low, as there is nothing to wear out and the valve may be shifted to permit a full discharge from the T II or a partial discharge as desired.

What is claimed isz- 1. A structure of the character described, including a. pipe line having a downwardly discharging T, the discharge opening of the T forming a valve seat, a clamp mounted upon the pipe line and extending upward, a lever pivoted upon 4said clamp, a second clamp mounted upon the pipe line and having an upwardly extending leg Yhaving perforations, means insertible through l `the, perforations of said leg for holding the lever raised or lowered, a'shackle carried by the lever, a yoke swingin'gly mounted uponV the shackle' and embracing the iittinga supporting plate carried by the lower end of the yoke, and a plug valveV :discharge fitting, a plug valve adapted to seat .1v

upon an upward movement Within the lower end of the tting and adaptedto have a downward Y movement Vto a position entirely (exterior tos/the.:` ntting, a. yoke supporting the plugV valveVV and" disposed exteriorly to thevfitting, a Support asso'"V ciated with the pipe line, a lever Ypivoted on saidA support and to which the yoke is swingingly con;

nected `whereby the yoke and valve may be raised or 10w ered,and means for holding thek lever raised. 3l A .structure of the character describedfincludingga-pipe-1line having a discharge iittingl formed with aseat at-'the extremity vof the dis--V charge end, a yoke'Y embracing the ittingY andk carrying a tapered Yplug valve disposed exteriorly;

' of vtheiitting and normally seating-within said seat, the valve and yoke being movable to carry the valve against the seat or to a position entirely exterior to the ntting, a support associated with the pipeline, a lever pivoted on said support and l to which the yoke is swingingly connected, rand 4. A structure of the character described', including a pipe line having a downwardly opening dischargev fitting `formed with-an `upwardly ta-V pered seat Aat its lower end, a'rsupporting' member element disposed exteriorly of rthe tting and swingingly connected to said lever and extending means for holdingthe lever in a position with 4 the plug valve partly closed or entirely open.

.associated with the pipe line, a lever pivoted upon the supporting member, meanswhereby the lever may be heldin any adjustediposition, an

downwardly therefrom and an upwardly tapered Y plug valve supported by said element, the upward movement, of the lever carrying Vthe plugvalve into the tapered seat in the fitting, the fulldown'- ward movement-oi thelever carrying the 'plug' valveentirelyout of the fitting,.the swinging con'' Y nectionbetween .the supporting element and thelever permitting the ,supporting element and the plug: valve `to be swungV Ventirely vto one side fof the fitting. Y

`LEB/mnh J..PURLE. 

